[jira] [Created] (HBASE-20767) Always close hbaseAdmin along with connection in HBTU

["Duo Zhang (JIRA)" <ji...@apache.org>]

Duo Zhang created HBASE-20767:
---------------------------------

             Summary: Always close hbaseAdmin along with connection in HBTU
                 Key: HBASE-20767
                 URL: https://issues.apache.org/jira/browse/HBASE-20767
             Project: HBase
          Issue Type: Bug
            Reporter: Duo Zhang
             Fix For: 3.0.0, 2.1.0, 2.0.2


The patch for HBASE-20727 breaks TestMaster as it calls the HBTU.restartHBaseCluster, where we close the connection but do not close the hbaseAdmin. And then the next time when we create a table through the hbaseAdmin, we will get a DoNotRetryIOException since the connection it uses has already been closed.

{noformat}
org.apache.hadoop.hbase.DoNotRetryIOException: Connection was closed while trying to get master
	at org.apache.hadoop.hbase.client.ConnectionImplementation$MasterServiceStubMaker.makeStub(ConnectionImplementation.java:1156)
	at org.apache.hadoop.hbase.client.ConnectionImplementation.getKeepAliveMasterService(ConnectionImplementation.java:1213)
	at org.apache.hadoop.hbase.client.ConnectionImplementation.getMaster(ConnectionImplementation.java:1202)
	at org.apache.hadoop.hbase.client.MasterCallable.prepare(MasterCallable.java:57)
	at org.apache.hadoop.hbase.client.RpcRetryingCallerImpl.callWithRetries(RpcRetryingCallerImpl.java:105)
	at org.apache.hadoop.hbase.client.HBaseAdmin.executeCallable(HBaseAdmin.java:3084)
	at org.apache.hadoop.hbase.client.HBaseAdmin.executeCallable(HBaseAdmin.java:3076)
	at org.apache.hadoop.hbase.client.HBaseAdmin.createTableAsync(HBaseAdmin.java:647)
	at org.apache.hadoop.hbase.client.HBaseAdmin.createTable(HBaseAdmin.java:620)
	at org.apache.hadoop.hbase.HBaseTestingUtility.createTable(HBaseTestingUtility.java:1408)
	at org.apache.hadoop.hbase.HBaseTestingUtility.createTable(HBaseTestingUtility.java:1384)
	at org.apache.hadoop.hbase.HBaseTestingUtility.createTable(HBaseTestingUtility.java:1442)
	at org.apache.hadoop.hbase.HBaseTestingUtility.createTable(HBaseTestingUtility.java:1342)
	at org.apache.hadoop.hbase.HBaseTestingUtility.createTable(HBaseTestingUtility.java:1318)
	at org.apache.hadoop.hbase.HBaseTestingUtility.createTable(HBaseTestingUtility.java:1288)
	at org.apache.hadoop.hbase.master.TestMaster.testMasterOpsWhileSplitting(TestMaster.java:101)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.lang.Thread.run(Thread.java:748)
{noformat}



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